Judgment of the Court of 10 July 2003 in Case C-11/00: Commission of the European Communities v European Investment Bank (European Central Bank (ECB) — Decision 1999/726/EC on fraud prevention — Protection of the Communities' financial interests — European Anti-Fraud Office (OLAF) — Regulation (EC) No 1073/1999 — Applicability to the ECB — Plea of illegality — Admissibility — Independence of the ECB — Article 108 EC — Legal basis — Article 280 EC — Consultation of the ECB — Article 105(4) EC — Proportionality)